Most likely we are (a) waiting for stuff to get merged from Alan's tree, and

For the record, I do not feel comfortable at all with forking2.4.x over to Alan until all of the non-trivial bits of theAC patches are merged into Linus's tree.

In particular, the quota stuff, which has sat in Alan's tree forever.If Linus is ignoring the changes it probably is for a good reasonbut it would be nice for him to let Alan know what that reason is :-)